Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 64, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jul 29, 2021, 1:08 PM EDT for Crawford County, Pennsylvania. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2021, 1:08 PM EDT (17:08 UTC)
- Expired
- Jul 29, 2021, 1:45 PM EDT
- In force
- 37 min
- Issued by
- NWS Cleveland, OH
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Crawford County, PA
The radar
The Pittsburgh radar (KPBZ), 115 km from the middle of the area, began a volume at 17:10 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 5.1 hours before the alert went out and 129 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 136 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1222 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 213 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
563
WUUS51 KCLE 291708
SVRCLE
PAC039-291745-
/O.NEW.KCLE.SV.W.0064.210729T1708Z-210729T1745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
108 PM EDT Thu Jul 29 2021
The National Weather Service in Cleveland has issued a
* Severe Thunderstorm Warning for...
Southwestern Crawford County in northwestern Pennsylvania...
* Until 145 PM EDT.
* At 108 PM EDT, severe thunderstorms were located along a line
extending from Pymatuning North to 6 miles northeast of Atlantic,
moving southeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Linesville, Harmonsburg, Pymatuning North, Atlantic, Adamsville,
Pymatuning Central, Cochranton, Conneaut Lake, Conneaut Lakeshore,
Geneva and Hartstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4149 8002 4149 8009 4148 8013 4148 8033
4163 8052 4173 8052 4170 8029
TIME...MOT...LOC 1708Z 303DEG 47KT 4168 8048 4156 8024
HAIL...<.75IN
WIND...60MPH
$$
Saunders2 follow-up statements
953
WWUS51 KCLE 291723
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
123 PM EDT Thu Jul 29 2021
PAC039-291745-
/O.CON.KCLE.SV.W.0064.000000T0000Z-210729T1745Z/
Crawford PA-
123 PM EDT Thu Jul 29 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM EDT
FOR SOUTHWESTERN CRAWFORD COUNTY...
At 123 PM EDT, a severe thunderstorm was located near Atlantic, or 8
miles southwest of Meadville, moving southeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Atlantic, Adamsville, Cochranton, Conneaut Lake, Conneaut Lakeshore,
Geneva and Hartstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4160 8042 4164 8029 4159 8015 4149 8002
4149 8009 4148 8013 4148 8033 4152 8038
TIME...MOT...LOC 1723Z 307DEG 35KT 4157 8028
HAIL...<.75IN
WIND...60MPH
$$
Saunders084
WWUS51 KCLE 291740
SVSCLE
Severe Weather Statement
National Weather Service Cleveland OH
140 PM EDT Thu Jul 29 2021
PAC039-291749-
/O.EXP.KCLE.SV.W.0064.000000T0000Z-210729T1745Z/
Crawford PA-
140 PM EDT Thu Jul 29 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CRAWFORD COUNTY
WILL EXPIRE AT 145 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 4160 8042 4164 8029 4159 8015 4149 8002
4149 8009 4148 8013 4148 8033 4152 8038
TIME...MOT...LOC 1739Z 303DEG 47KT 4148 8009
$$
SaundersThe office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 10:05 AM EDT | Beach Hazards Statement | CLE | Erie | 28 hr |
| Jul 29, 10:17 AM EDT | Special Weather Statement | CLE | Crawford, Erie | 28 min |
| Jul 29, 10:21 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 39 min |
| Jul 29, 11:11 AM EDT | Areal Flood Advisory | CLE | Erie | 3 hr |
| Jul 29, 11:35 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 40 min |
| Jul 29, 11:45 AM EDT | Tornado Warning | CLE | Crawford, Erie | 27 min |
| Jul 29, 12:52 PM EDT | Areal Flood Advisory | CLE | Crawford | 3 hr |
| Jul 29, 1:01 PM EDT | Special Weather Statement | CLE | Crawford | 29 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.